NOTE: These type questions lend themselves to alternate answers, so if you think you've found a legit one, feel free to add it to the comments. Thanks!

OUR ANSWER:

The number 77 best completes the sequence.

t's based on the number of syllables in each number: ten (1 syllable), fif-teen (2 syllables), nine-ty-five (three syllables), one-hun-dred-two (four syllables)... so sev-en-ty-sev-en (5 syllables) would be the best fit.